[Xen-users] LVM OOM killer

[Geoff Kirk <geoff.k@xxxxxxxxxxxxxxxxxxx>]

Hi all,

        yeah ok don't laugh at my hardware. I got this.... is it normal to get 
OOM killers with heavy usage of LVM CoW clones and only 64mb ram assigned to 
dom0 PIII (also is running apache2/nfs/sshd and 4 idling domU's)

Aug 15 14:40:27 xen5etch kernel: printk: 36 messages suppressed.
Aug 15 14:40:30 xen5etch kernel: oom-killer: gfp_mask=0x280d2, order=0
Aug 15 14:40:30 xen5etch kernel:  [<c013f243>] out_of_memory+0x25/0x13a
Aug 15 14:40:30 xen5etch kernel:  [<c0140721>] __alloc_pages+0x1f5/0x275
Aug 15 14:40:30 xen5etch kernel:  [<c0147fba>] __handle_mm_fault+0x2fc/0xfa3
Aug 15 14:40:30 xen5etch kernel:  [<c01405fb>] __alloc_pages+0xcf/0x275
Aug 15 14:40:30 xen5etch kernel:  [<c0288eec>] schedule+0x628/0x6e0
Aug 15 14:40:30 xen5etch kernel:  [<c0146d2a>] follow_page+0x23b/0x312
Aug 15 14:40:30 xen5etch kernel:  [<c0148fd6>] get_user_pages+0x375/0x474
Aug 15 14:40:30 xen5etch kernel:  [<c014c258>] vma_merge+0xd3/0x142
Aug 15 14:40:30 xen5etch kernel:  [<c014abbc>] make_pages_present+0x6f/0x84
Aug 15 14:40:30 xen5etch kernel:  [<c014c6d0>] do_brk+0x1c5/0x1dd
Aug 15 14:40:30 xen5etch kernel:  [<c014c79b>] sys_brk+0xb3/0xd3
Aug 15 14:40:30 xen5etch kernel:  [<c0104883>] syscall_call+0x7/0xb
Aug 15 14:40:30 xen5etch kernel: Mem-info:
Aug 15 14:40:30 xen5etch kernel: DMA per-cpu:
Aug 15 14:40:30 xen5etch kernel: cpu 0 hot: high 18, batch 3 used:2
Aug 15 14:40:30 xen5etch kernel: cpu 0 cold: high 6, batch 1 used:5
Aug 15 14:40:30 xen5etch kernel: DMA32 per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Normal per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: HighMem per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Free pages:        1308kB (0kB HighMem)
Aug 15 14:40:30 xen5etch kernel: Active:1154 inactive:2487 dirty:0 
writeback:598 unstable:0 free:327 slab:2148 mapped:943 pagetables:154
Aug 15 14:40:30 xen5etch kernel: DMA free:1308kB min:1072kB low:1340kB 
high:1608kB active:4616kB inactive:9948kB present:72192kB pages_scanned:869 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA32 free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: Normal free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: HighMem free:0kB min:128kB low:128kB 
high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA: 53*4kB 5*8kB 0*16kB 1*32kB 2*64kB 1*128kB 
1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1308kB
Aug 15 14:40:30 xen5etch kernel: DMA32: empty
Aug 15 14:40:30 xen5etch kernel: Normal: empty
Aug 15 14:40:30 xen5etch kernel: HighMem: empty
Aug 15 14:40:30 xen5etch kernel: Swap cache: add 87431, delete 85882, find 
16147/22495, race 0+50
Aug 15 14:40:30 xen5etch kernel: Free swap  = 426612kB
Aug 15 14:40:30 xen5etch kernel: Total swap = 441776kB
Aug 15 14:40:30 xen5etch kernel: Free swap:       426612kB
Aug 15 14:40:30 xen5etch kernel: 18048 pages of RAM
Aug 15 14:40:30 xen5etch kernel: 0 pages of HIGHMEM
Aug 15 14:40:30 xen5etch kernel: 1411 reserved pages
Aug 15 14:40:30 xen5etch kernel: 1011 pages shared
Aug 15 14:40:30 xen5etch kernel: 1549 pages swap cached
Aug 15 14:40:30 xen5etch kernel: 0 pages dirty
Aug 15 14:40:30 xen5etch kernel: 598 pages writeback
Aug 15 14:40:30 xen5etch kernel: 943 pages mapped
Aug 15 14:40:30 xen5etch kernel: 2148 pages slab
Aug 15 14:40:30 xen5etch kernel: 154 pages pagetables
Aug 15 14:40:30 xen5etch kernel: Out of Memory: Kill process 5395 (apache2) 
score 57750 and children.
Aug 15 14:40:30 xen5etch kernel: Out of memory: Killed process 5395 (apache2).
Aug 15 14:40:30 xen5etch kernel: oom-killer: gfp_mask=0x201d2, order=0
Aug 15 14:40:30 xen5etch kernel:  [<c013f243>] out_of_memory+0x25/0x13a
Aug 15 14:40:30 xen5etch kernel:  [<c0140721>] __alloc_pages+0x1f5/0x275
Aug 15 14:40:30 xen5etch kernel:  [<c01418ce>] 
__do_page_cache_readahead+0xcf/0x1f3
Aug 15 14:40:30 xen5etch kernel:  [<c01adf26>] blk_remove_plug+0x8/0x4f
Aug 15 14:40:30 xen5etch kernel:  [<c01adf81>] __generic_unplug_device+0x14/0x1f
Aug 15 14:40:30 xen5etch kernel:  [<c013e955>] filemap_nopage+0x15b/0x312
Aug 15 14:40:30 xen5etch kernel:  [<c0148308>] __handle_mm_fault+0x64a/0xfa3
Aug 15 14:40:30 xen5etch kernel:  [<c011194d>] do_page_fault+0x6af/0xb76
Aug 15 14:40:30 xen5etch kernel:  [<c0288eec>] schedule+0x628/0x6e0
Aug 15 14:40:30 xen5etch kernel:  [<c0288f20>] schedule+0x65c/0x6e0
Aug 15 14:40:30 xen5etch kernel:  [<c0158d4e>] do_sync_write+0xb6/0xf1
Aug 15 14:40:30 xen5etch kernel:  [<c0104a0f>] error_code+0x2b/0x30
Aug 15 14:40:30 xen5etch kernel:  [<c011194d>] do_page_fault+0x6af/0xb76
Aug 15 14:40:30 xen5etch kernel:  [<c01597aa>] vfs_read+0x101/0x141
Aug 15 14:40:30 xen5etch kernel:  [<c0159b94>] sys_read+0x3c/0x63
Aug 15 14:40:30 xen5etch kernel:  [<c011129e>] do_page_fault+0x0/0xb76
Aug 15 14:40:30 xen5etch kernel:  [<c0104a0f>] error_code+0x2b/0x30
Aug 15 14:40:30 xen5etch kernel: Mem-info:
Aug 15 14:40:30 xen5etch kernel: DMA per-cpu:
Aug 15 14:40:30 xen5etch kernel: cpu 0 hot: high 18, batch 3 used:2
Aug 15 14:40:30 xen5etch kernel: cpu 0 cold: high 6, batch 1 used:5
Aug 15 14:40:30 xen5etch kernel: DMA32 per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Normal per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: HighMem per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Free pages:        1568kB (0kB HighMem)
Aug 15 14:40:30 xen5etch kernel: Active:1809 inactive:1823 dirty:0 
writeback:322 unstable:0 free:392 slab:2128 mapped:939 pagetables:122
Aug 15 14:40:30 xen5etch kernel: DMA free:1568kB min:1072kB low:1340kB 
high:1608kB active:7236kB inactive:7292kB present:72192kB pages_scanned:57 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA32 free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: Normal free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: HighMem free:0kB min:128kB low:128kB 
high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA: 76*4kB 26*8kB 0*16kB 1*32kB 2*64kB 
1*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1568kB
Aug 15 14:40:30 xen5etch kernel: DMA32: empty
Aug 15 14:40:30 xen5etch kernel: Normal: empty
Aug 15 14:40:30 xen5etch kernel: HighMem: empty
Aug 15 14:40:30 xen5etch kernel: Swap cache: add 88670, delete 86167, find 
16173/22523, race 0+50
Aug 15 14:40:30 xen5etch kernel: Free swap  = 421784kB
Aug 15 14:40:30 xen5etch kernel: Total swap = 441776kB
Aug 15 14:40:30 xen5etch kernel: Free swap:       421784kB
Aug 15 14:40:30 xen5etch kernel: 18048 pages of RAM
Aug 15 14:40:30 xen5etch kernel: 0 pages of HIGHMEM
Aug 15 14:40:30 xen5etch kernel: 1411 reserved pages
Aug 15 14:40:30 xen5etch kernel: 1005 pages shared
Aug 15 14:40:30 xen5etch kernel: 2503 pages swap cached
Aug 15 14:40:30 xen5etch kernel: 0 pages dirty
Aug 15 14:40:30 xen5etch kernel: 322 pages writeback
Aug 15 14:40:30 xen5etch kernel: 939 pages mapped
Aug 15 14:40:30 xen5etch kernel: 2128 pages slab
Aug 15 14:40:30 xen5etch kernel: 122 pages pagetables
Aug 15 14:40:30 xen5etch kernel: Out of Memory: Kill process 5394 (apache2) 
score 2416 and children.
Aug 15 14:40:30 xen5etch kernel: Out of memory: Killed process 5394 (apache2).
Aug 15 14:40:30 xen5etch kernel: oom-killer: gfp_mask=0x280d2, order=0
Aug 15 14:40:30 xen5etch kernel:  [<c013f243>] out_of_memory+0x25/0x13a
Aug 15 14:40:30 xen5etch kernel:  [<c0140721>] __alloc_pages+0x1f5/0x275
Aug 15 14:40:30 xen5etch kernel:  [<c0147fba>] __handle_mm_fault+0x2fc/0xfa3
Aug 15 14:40:30 xen5etch kernel:  [<c01405fb>] __alloc_pages+0xcf/0x275
Aug 15 14:40:30 xen5etch kernel:  [<c0288eec>] schedule+0x628/0x6e0
Aug 15 14:40:30 xen5etch kernel:  [<c0146d2a>] follow_page+0x23b/0x312
Aug 15 14:40:30 xen5etch kernel:  [<c0148fd6>] get_user_pages+0x375/0x474
Aug 15 14:40:30 xen5etch kernel:  [<c014c258>] vma_merge+0xd3/0x142
Aug 15 14:40:30 xen5etch kernel:  [<c014abbc>] make_pages_present+0x6f/0x84
Aug 15 14:40:30 xen5etch kernel:  [<c014c6d0>] do_brk+0x1c5/0x1dd
Aug 15 14:40:30 xen5etch kernel:  [<c014c79b>] sys_brk+0xb3/0xd3
Aug 15 14:40:30 xen5etch kernel:  [<c0104883>] syscall_call+0x7/0xb
Aug 15 14:40:30 xen5etch kernel: Mem-info:
Aug 15 14:40:30 xen5etch kernel: DMA per-cpu:
Aug 15 14:40:30 xen5etch kernel: cpu 0 hot: high 18, batch 3 used:2
Aug 15 14:40:30 xen5etch kernel: cpu 0 cold: high 6, batch 1 used:0
Aug 15 14:40:30 xen5etch kernel: DMA32 per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Normal per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: HighMem per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Free pages:        1484kB (0kB HighMem)
Aug 15 14:40:30 xen5etch kernel: Active:1498 inactive:2165 dirty:0 writeback:2 
unstable:0 free:371 slab:2128 mapped:939 pagetables:114
Aug 15 14:40:30 xen5etch kernel: DMA free:1484kB min:1072kB low:1340kB 
high:1608kB active:5992kB inactive:8660kB present:72192kB pages_scanned:4574 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA32 free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: Normal free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: HighMem free:0kB min:128kB low:128kB 
high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA: 29*4kB 19*8kB 10*16kB 1*32kB 2*64kB 
1*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1484kB
Aug 15 14:40:30 xen5etch kernel: DMA32: empty
Aug 15 14:40:30 xen5etch kernel: Normal: empty
Aug 15 14:40:30 xen5etch kernel: HighMem: empty
Aug 15 14:40:30 xen5etch kernel: Swap cache: add 89005, delete 86507, find 
16179/22539, race 0+50
Aug 15 14:40:30 xen5etch kernel: Free swap  = 421060kB
Aug 15 14:40:30 xen5etch kernel: Total swap = 441776kB
Aug 15 14:40:30 xen5etch kernel: Free swap:       421060kB
Aug 15 14:40:30 xen5etch kernel: 18048 pages of RAM
Aug 15 14:40:30 xen5etch kernel: 0 pages of HIGHMEM
Aug 15 14:40:30 xen5etch kernel: 1411 reserved pages
Aug 15 14:40:30 xen5etch kernel: 1006 pages shared
Aug 15 14:40:30 xen5etch kernel: 2498 pages swap cached
Aug 15 14:40:30 xen5etch kernel: 0 pages dirty
Aug 15 14:40:30 xen5etch kernel: 2 pages writeback
Aug 15 14:40:30 xen5etch kernel: 939 pages mapped
Aug 15 14:40:30 xen5etch kernel: 2128 pages slab
Aug 15 14:40:30 xen5etch kernel: 114 pages pagetables
Aug 15 14:40:30 xen5etch kernel: Out of Memory: Kill process 2206 (python) 
score 1206 and children.
Aug 15 14:40:30 xen5etch kernel: Out of memory: Killed process 5396 (python).
Aug 15 14:40:30 xen5etch kernel: oom-killer: gfp_mask=0x280d2, order=0
Aug 15 14:40:30 xen5etch kernel:  [<c013f243>] out_of_memory+0x25/0x13a
Aug 15 14:40:30 xen5etch kernel:  [<c0140721>] __alloc_pages+0x1f5/0x275
Aug 15 14:40:30 xen5etch kernel:  [<c0147fba>] __handle_mm_fault+0x2fc/0xfa3
Aug 15 14:40:30 xen5etch kernel:  [<c0288eec>] schedule+0x628/0x6e0
Aug 15 14:40:30 xen5etch kernel:  [<c0146d2a>] follow_page+0x23b/0x312
Aug 15 14:40:30 xen5etch kernel:  [<c0148fd6>] get_user_pages+0x375/0x474
Aug 15 14:40:30 xen5etch kernel:  [<c014c258>] vma_merge+0xd3/0x142
Aug 15 14:40:30 xen5etch kernel:  [<c014abbc>] make_pages_present+0x6f/0x84
Aug 15 14:40:30 xen5etch kernel:  [<c014c6d0>] do_brk+0x1c5/0x1dd
Aug 15 14:40:30 xen5etch kernel:  [<c014c79b>] sys_brk+0xb3/0xd3
Aug 15 14:40:30 xen5etch kernel:  [<c0104883>] syscall_call+0x7/0xb
Aug 15 14:40:30 xen5etch kernel: Mem-info:
Aug 15 14:40:30 xen5etch kernel: DMA per-cpu:
Aug 15 14:40:30 xen5etch kernel: cpu 0 hot: high 18, batch 3 used:5
Aug 15 14:40:30 xen5etch kernel: cpu 0 cold: high 6, batch 1 used:5
Aug 15 14:40:30 xen5etch kernel: DMA32 per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Normal per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: HighMem per-cpu: empty
Aug 15 14:40:30 xen5etch kernel: Free pages:        1276kB (0kB HighMem)
Aug 15 14:40:30 xen5etch kernel: Active:1871 inactive:1835 dirty:0 writeback:0 
unstable:0 free:319 slab:2108 mapped:939 pagetables:104
Aug 15 14:40:30 xen5etch kernel: DMA free:1276kB min:1072kB low:1340kB 
high:1608kB active:7484kB inactive:7340kB present:72192kB pages_scanned:0 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA32 free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: Normal free:0kB min:0kB low:0kB high:0kB 
active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: HighMem free:0kB min:128kB low:128kB 
high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 
all_unreclaimable? no
Aug 15 14:40:30 xen5etch kernel: lowmem_reserve[]: 0 0 0 0
Aug 15 14:40:30 xen5etch kernel: DMA: 41*4kB 5*8kB 1*16kB 1*32kB 2*64kB 1*128kB 
1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1276kB
Aug 15 14:40:30 xen5etch kernel: DMA32: empty
Aug 15 14:40:30 xen5etch kernel: Normal: empty
Aug 15 14:40:30 xen5etch kernel: HighMem: empty
Aug 15 14:40:30 xen5etch kernel: Swap cache: add 89320, delete 86600, find 
16186/22568, race 0+50
Aug 15 14:40:30 xen5etch kernel: Free swap  = 422104kB
Aug 15 14:40:30 xen5etch kernel: Total swap = 441776kB
Aug 15 14:40:30 xen5etch kernel: Free swap:       422104kB
Aug 15 14:40:30 xen5etch kernel: 18048 pages of RAM
Aug 15 14:40:30 xen5etch kernel: 0 pages of HIGHMEM
Aug 15 14:40:30 xen5etch kernel: 1411 reserved pages
Aug 15 14:40:30 xen5etch kernel: 1005 pages shared
Aug 15 14:40:30 xen5etch kernel: 2720 pages swap cached
Aug 15 14:40:30 xen5etch kernel: 0 pages dirty
Aug 15 14:40:30 xen5etch kernel: 0 pages writeback
Aug 15 14:40:30 xen5etch kernel: 939 pages mapped
Aug 15 14:40:30 xen5etch kernel: 2108 pages slab
Aug 15 14:40:30 xen5etch kernel: 104 pages pagetables
Aug 15 14:40:30 xen5etch kernel: Out of Memory: Kill process 5443 (lvremove) 
score 230 and children.
Aug 15 14:40:30 xen5etch kernel: Out of memory: Killed process 5443 (lvremove).


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